Move auth functions to central location

server/utils/auth.js

@@ -0,0 +1,42 @@
+import assign from 'object.assign';
+
+// using es6 argument destructing
+export function setProfileFromGithub(
+  user,
+  {
+    profileUrl: githubURL,
+    username
+  },
+  {
+    id: githubId,
+    'avatar_url': picture,
+    email: githubEmail,
+    'created_at': joinedGithubOn,
+    blog: website,
+    location,
+    name
+  }
+) {
+  return assign(
+    user,
+    { isGithubCool: true, isMigrationGrandfathered: false },
+    {
+      name,
+      username: username.toLowerCase(),
+      location,
+      joinedGithubOn,
+      website,
+      picture,
+      githubId,
+      githubURL,
+      githubEmail,
+      githubProfile: githubURL
+    }
+  );
+}
+
+export function getFirstImageFromProfile(profile) {
+  return profile && profile.photos && profile.photos[0] ?
+    profile.photos[0].value :
+    null;
+}